Night Ledger

Record 001 · 23 September 1947

Twining memo

U.S. Army Air Forces · United States

Ledger illustration of the record — not a scan of the original paper. — Night Ledger illustration of the file

MemoDeclassified

Three months after the Kenneth Arnold sighting and the Roswell wreckage story, Lieutenant General Nathan F. Twining, head of Air Materiel Command at Wright Field, wrote to the commanding general of the Army Air Forces. The memo, now public, said the phenomenon was real, that the objects appeared disc-like, metallic, and under intelligent control, and that a directed study should begin.

It did not say the objects were extraterrestrial. It said the reports were not all nonsense, and that the Air Force should find out what they were. Project Sign followed. The paper is one of the earliest official American statements that the discs were a subject, not a joke.

Public file: U.S. Air Force / Project Blue Book record

Related paper

FOIA / archiveUnclassified

2023–2025

Records from the Office of the Secretary of Defense Relating to Unidentified Anomalous Phenomena, October 1, 2023–2025

National Archives and Records Administration (NARA) / Office of the Secretary of Defense · United States

This Record Group 615 collection at the National Archives aggregates declassified and unclassified U.S. government records on UAP, technologies of unknown origin, and non-human intelligence (explicitly excluding ordinary non-attributed objects), produced in response to the 2024 NDAA.

FOIA / archiveDeclassified

August 2026

PURSUE Release 05: Declassified UAP Files (August 2026 tranche)

Department of Defense / Department of War · United States

Fifth tranche of the Presidential Unsealing and Reporting System for UAP Encounters (PURSUE), releasing 41 additional files including historical documents from 1953 onward, videos of orbs and spheres, digital renderings, and investigative PDFs from FBI, DoD, and other agencies. Materials cover global sightings and analyses but attribute most to explainable phenomena or unresolved due to limited da

FOIA / archiveDeclassified

August 2026

PURSUE Release 05 (August 2026 UAP Files)

Department of Defense · United States

This tranche of the Presidential Unsealing and Reporting System for UAP Encounters (PURSUE) releases additional historical and modern UAP-related documents, imagery, and sensor data from multiple agencies as part of a rolling declassification effort. Materials include reports of orb-like phenomena, sensor data from military platforms, and archival records. Consistent with other PURSUE releases and